National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Grissom Air Force Base / Peru (KGUS)

Lat: 40.65°NLon: 86.15°WElev: 810ft.

Fair

72°F

22°C

Humidity 40%
Wind Speed E 3 mph
Barometer 30.11 in (1019.8 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 26 Sep 4:55 pm EDT
Extended Forecast for

Galveston IN

  • Tonight

    Tonight: Mostly clear, with a low around 46. Northeast wind around 5 mph becoming calm in the evening.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 71. Calm wind becoming north around 5 mph in the afternoon.

    High: 71 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 50. North wind around 5 mph becoming calm after midnight.

    Low: 50 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 73. Calm wind becoming north around 5 mph in the afternoon.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 51. Northeast wind around 5 mph becoming calm.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly before 2pm. Mostly cloudy, with a high near 75.

    High: 75 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.

    Low: 63 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 46. Northeast wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 71. Calm wind becoming north around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 50. North wind around 5 mph becoming calm after midnight.
Monday
Sunny, with a high near 73. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 51. Northeast wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
A 30 percent chance of showers, mainly before 2pm. Mostly cloudy, with a high near 75.
Wednesday Night
A slight chance of showers, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 74.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 69.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Saturday
A chance of showers. Partly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Galveston IN
 40.59°N 86.2°W (Elev. 778 ft)
Last Update:
4:01 pm EDT Sep 26, 2026
Forecast Valid:
5pm EDT Sep 26, 2026-6pm EDT Oct 3, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation